2551940000 has 60 divisors (see below), whose sum is σ = 6278204394. Its totient is φ = 1020768000.

The previous prime is 2551939967. The next prime is 2551940009. The reversal of 2551940000 is 491552.

It can be written as a sum of positive squares in 5 ways, for example, as 166203664 + 2385736336 = 12892^2 + 48844^2 .

It is not an unprimeable number, because it can be changed into a prime (2551940009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 43799 + ... + 83798.

Almost surely, 2^2551940000 is an apocalyptic number.

2551940000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2551940000 is an abundant number, since it is smaller than the sum of its proper divisors (3726264394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2551940000 is an equidigital number, since it uses as much as digits as its factorization.

2551940000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127627 (or 127604 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 2551940000 is about 50516.7299020829. The cubic root of 2551940000 is about 1366.5435806922.

The spelling of 2551940000 in words is "two billion, five hundred fifty-one million, nine hundred forty thousand".